In order to ferment the food wastes, air with proper temperature and humidity may be supplied. The air passed the moist wastes becomes highly humid air. Then the air should be dehumidified to recirculate into the system. In this paper, a simple double...
In order to ferment the food wastes, air with proper temperature and humidity may be supplied. The air passed the moist wastes becomes highly humid air. Then the air should be dehumidified to recirculate into the system. In this paper, a simple double-pipe heat exchanger, in which moist air and refrigerant flow into inner and outer pipes respectively, is tested to dehumidify the moist air. From the experiments, it is found that dehumidification efficiency is 88.9% to 77.9% and overall heat transfer coefficient between moist air and refrigerant is 321.6 to 1091.9W/m2℃ as mass flow rate of air is increased.